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Online since: February 2011
Authors: Hui Li Hu, Yong Ming Zhu, Zhen Mi Tu, Wen Juan Liu
High Anticorrosion Nano Zn-Fe Coatings by Pulse Electrodepositing Huili Hu1,a, Yongming Zhu1,b, Zhenmi Tu1,c, Wenjuan Liu2,d 1Department of Applied Chemistry, Harbin Institute of Technology at Weihai, Weihai, 264209, China; 2Department of Applied Chemistry, Zhejiang University, Hangzhou, 310027, China awhhhl@126.com, bKielming@hotmail.com, cz.m.tu@263.net, dhitewa@gmail.com Keywords: Zn-Fe Alloy; Reverse Pulse Current; Nano Structured Coating; Corrosion Resistance Abstract.
The properties of alloy coatings greatly depend on the structure and the composition, while the structure and the composition of the alloy coatings were determined by the plating mode and parameters.
The structure was examined by X-ray diffraction (XRD) with a cobalt anode (Kα1 = 0.17889 nm).
Structures for species were measured by XRD and were showed in Fig. 5.
And obviously, anticorrosion resistance is affected by the crystal structures and sizes of coatings.
Online since: June 2017
Authors: Yu Xiang Lu, Xian Ping Li
The surface of the Ni-W-P/graphene composite coatings was smooth and the structure was compact.
The surface of the Ni-W-P coating (Fig. 4(a)) is the compact cellular structure.
The addition of the graphene changes the surface structure of the coating (Fig. 4(b)): it is smooth rather than typical cellular, and there are also micro-pit structures due to the interaction of graphene layers.
Martin, et al, Layer-by-layer assembly of ultrathin composite films from micron-sized graphite oxide sheets and polycations, Chemistry of Materials. 11 (1999) 771-778
Chen, et al, Stable aqueous dispersions of graphitic nanoplatelets via the reduction of exfoliated graphite oxide in the presence of poly (sodium 4-styrenesulfonate), Journal of Materials Chemistry. 16 (2006) 155-158
Online since: May 2015
Authors: Tao Chen, Shi Bing Liu, Chong Zheng, Cui Yan Guo, Jing Wei Xue
Microfluidic chips have been widely used in various of areas, such as biology, chemistry, medical science and so on.
A microfluidic chip with a string of microholes on the bottom of a microchannel was designed inspired by this structure.
In addition, the thickness of pit structure was 1.5µm.
The structure of designed microfluidic chip.
The pressure of channel without microholes drops 3000 Pa, while structured channel lost pressure 2000 Pa.
Online since: September 2013
Authors: Xiao Bo Zhang, Li Liu, Chang Bai Liu, Yue He, Lian Yuan Wang
Electrode and Structure Design of Micro-hotplate A new electrode configuration with three pins is proposed for micro-hotplate.
Relative to serpentine distribution[9] which is mostly used in micro-hotplate electrode configuration, the new electrode structure can reduce the difficulty of the production effectively.
Fig. 1 Schematic diagram of the micro-hotplate structure Micro-hotplate Structure Optimization Substrates Optimization.
Then, magnetic field distribution of the new micro-hotplate is also analyzed by ANSYS, the new electrode structure eliminates effectively the interference on the measuring signal from magnetic field.
[6] Yoon Jin-Ho, Kim Bum-Joon, and Kim Jung-Sik: Materials Chemistry and Physics, Vol.133 (2012), p. 987-991
Online since: March 2019
Authors: Amizon Azizan, Nur Amira Aida Jusri, Zuqhair Sherry Zalman Zain, Abd Mohd Faizal Rahman
Increased dosage of irradiation resulted in lower LOI values indicated that the biomasses structure has changed to amorphous structure.
Higher amorphous structures present enable better hydrolysis via suitable enzyme in comparison to with the presence of ordered arrangement of crystalline structures.
This explains that the crystalline structure of cellulose may be leading towards amorphous states.
Galvao, Electron beam combined with hydrothermal treatment for enhancing the enzymatic convertibility of sugarcane bagasse Radiation Physics and Chemistry 81(8) (2012) 1008-1011 [7] A.
Use of potassium bromide pellet technique Analytical Chemistry 32 (1962) 177-181 [13] R.P.
Online since: June 2012
Authors: Da Ming Ban, Ou Zhao, Yong Hang Zhang, Yang Min
A Novel Approach to Get Bisphenol-A Bis(Diphenyl Phosphate) Ban Daming1,a, Min Yang1,b, Zhang Yonghang1,c, Zhao Ou1,d 1 School of Chemistry and Material Science, Guizhou Normal University, Guiyang Guizhou 550001, P.R.
The structure of S-BDP was characterized with Fourier Transform Infrared Spectroscopy (FTIR).
The results review that S-BDP was synthesized successfully and its structure is similar to BDP.
It is deserved to synthesize high molecular polymer or oligomer which contained same chemical structure as BDP[2].
The structure of S-BDP was confirmed by FTIR.
Online since: August 2013
Authors: Xin Long Jiang, Yi Hua Jiang, Shun Tang
Current enhancement methods include copigmentation, structure derivatization, microencapsulation, etc. [1].
However, since the exact structure and molar mass of MBA are not known, the ratio of tannin and MBA molecules cannot be determined at the point of maximum copigmentation conditions.
R.Fennema, Food Chemistry.BeiJin: China Light Industry Press, 1991:464-468.
Food Chemistry, 1987(25): 207-225
[6] O.R.Fennema,Food Chemistry [M].
Online since: January 2019
Authors: Zheng Chun Yang, Li Tu, Chuan Lai Zang, Tiao Hao He, Wen Jie Liu, Kai Jun Cao, Ye Mei Han, Zhen Yu Liao, Wen Qi, Cheng Long Wang
Lin, Facile and controllable electrochemical reduction of graphene oxide and its applications, Journal of Materials Chemistry. 20 (2010) 743-748
Roth, The structure of suspended grapheme sheets.
Lyding, The influence of edge structure on the electronic properties of graphene quantum dots and nanoribbons, Nature Materials. 8 (2009) 235-242
Lin, Quantum dots-enhanced chemiluminescence: Mechanism and application, Coordination Chemistry Reviews. 263-264 (2014) 86-100
Newair, Adsorptive stripping voltammetric determination of gallic acid using an electrochemical sensor based on polyepinephrine/glassy carbon electrode and its determination in black tea sample, Journal of Electroanalytical Chemistry. 704 (2013) 32-37
Online since: March 2009
Authors: David E. Alman, S. Sridhar, Gordon R. Holcomb, Laura M. Fernandez Diaz, Jing Zhu, Paul D. Jablonski
Slower scale growth and finer grain structure with increased porosity as the La concentration was augmented in LDN coatings were found.
Sample chemistries.
Three samples of each chemistry listed in Table 1 were oxidized under the aforementioned conditions.
Formation of ridges during oxidation was observed under CLSM in the three chemistries.
These experiments show such RE-inclusion particles being buried by the evolving scale during the oxidation process (Figs. 4 and 7) but there is no indication that the scale grain structure is refined at those locations.
Online since: February 2012
Authors: Ke He Su, Yan Li Wang, Jun Ping Zhang
Studying of B, N, S, Si and P Doped (5, 5) Carbon Nanotubes by the Density Functional Theory Yan Li Wang1, Ke He Su1 and Jun Ping Zhang1 1Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, China, School of Natural and Applied Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China, 710072 Keywords: Doped, (5, 5), Carbon nanotubes, Band structure, Energy gap Abstract.
The ultra long tube models were calculated and the structures, energies and the band structures were obtained.
In present work, it was extended the research to their structure parameter, energy and band structure.
All the geometries, energies and the band structures were from the theoretical optimized structures. 3.
The doped structure parameters optimized with PBC-B3LYP/3-21G(d) were listed in Table 1.